Stone-sawing machinery.



PATENTED APR. 17, 1906.

A. G. GRIGE.

STONE SAWING MACHINERY.

APPLIGATION FILED APR. 19, 1904.

5 SHEETS-SHEET 1.

No. 817,847. PATENTED APR. 17,1906. A. G. GRICE.

STONE SAWING MACHINERY.

APPLIUATION FILED APR.19, 1904.

5 SHEETS-SHEET 2.

PATENTED APR. 17, 1906.

A. G. GRICE. STUNE SAWING MACHINERY.

APPLIOATION FILED APR19. 1904.

5 SHEETS-SHEET 3.

No. 817,847. PATBNTED APR. 17, 1906.

A. G. GRICE.

STONE SAWING MACHINERY. APPLIGATION FILED APB. 19. 1904.

5 SHEETS-SHEET 4.

w Imaz/vr i2: 716750. rac@ Nm 817,847. PATENTED APR; 17'y 1906. A. G. GrRHIEz STONE SAWING MACHINERYn 5 SHEETS-SHEET 5.

APPLICATION FILED AFE. 19. 1904.

UNITED STATES ra'rnn'r caricia.

STONE-SAWING MACHINERY.

Specification of Letters Patent.

Patented April 17, 1906.

Application filed Aprl19, 1904. Serial No. 203,940.

T0 MZ whom, it may concern:

Beit known that l, ARTHUR GEO. GRrcE, a Subj ect of the King of Great Britain and Ireland, and a resident of Carnoustie, in the county of Forfar, Scotland, (whose post-office address is Taymouth Engineering Vorks, Carnoustie,) have invented a certain new and useful Improvement in Stone-Sawing Machinery, (for which I have applied for a patent in Great Britain, No. 8,955, bearing date April 2l, 1903,) of which the following is a specification.

This invention relates to improvements in stone-sawing machinery. Its objects are to facilitate and minimize the cost of sawing and molding stone, granite, marble, carbon, and like substances and allow of larger blocks being dealt with and to independently vary the forward and backward motions of the feed-table or feed-tables, the speed of the saw preferably remaining constant, and in order that my said invention and the manner of performing or carrying the same into effect or practice may be properly understood I have hereunto appended three explanatory sheets of drawings, in which the same reference -numerals are v used to indicate corresponding parts in all the figures where shown-that is to say:

Figure 1 is a front elevation of a machine, showing a stone in position on its carriage and the saw ready to commence operations. Fig. 2 is a view of same looking in the direction of the arrow A, Fig. 1. Fig. 3 is a plan of same. Fig. 3a is an enlarged detail elevation of parts seen in Fig. 3 when looking from the left. Fig. 41is a detail drawing showing the band-saw on its pulley, and Fig. 5'is a part side elevation of the band-saw with diamonds and holders in position. Fig. 6 is a sectional elevation at Z Z, Fig. 8, looking in the direction of the arrow B. Fig. 7 is a view looking in the direction of the arrow C, Fig. 8. Fig. 8 is a plan.

In carrying out my invention I provide a rigid foundation 6, above which are pillars 12, on which the feed table or tables 7 slide by means of nuts 8 and screws 9, such screws being actuated by bevel-wheels 10 from crossshafts 11. These upright brackets or pillars 12, supported by and at each side of the foundation-framing 6, which is not shown specially in the drawings, carry the tables 7, on which -are the pillow-blocks 13 and bearings in which the shaft 14 rotates, 15 being a fixed stud which carries one of the band-pulleys 16,

the other, 55, being on a sliding key, so that it can rise or fall on the shaft 14. These band-pulleys are set with their centers running vertically through them, as in the drawings. The band-pulleys are practically fixed as to the position of their shaft 14 and stud 15. Tension-gear 47 may be fitted to the fixed pulleys and actuated by a screw.

The pulley-shaft 21 is driven by means of a pulley 17 in the usual way by a belt from the counter shaft 18, and by means of the bevel-wheels 22 and 23 the band-pulley shaft 14 is rotated. A band of steel or iron 19 is mounted on the band-pulleys in the same manner as for cutting wood and is fitted along one or both edges with diamonds welded in removable sockets 20, according to Andersons British Patent No. 12,913 of 1899 or Andersons United States Patent No. 657,262 and dated September 4, 1900.

The saw-band 19 is moved toward or away from the article being cut by means of the open and crossed belts 24 and 25, which can actuate a fast pulley 26 on the shaft 27, causing it to rotate in the one direction or the other. These belts are controlled by a handlever 28, which operates another, 29, pivoted at 30, the latter actuating the slide-rod 31, on which are the belt-forks. The lever 28 or one similar controls the clutches 33 and 34 by means of the lever 29, the purpose being to cause the one to become engaged and the other disengaged, or vice versa.

35 is an adjustable crank on the shaft 27 and it can operate a ratchet wheel 36 by means of the connecting-rod 37 and ratchetlever 38. This ratchet-wheel operates the shaft 39 and through it the pinion 40, wheel 41, one of the cross-shafts 11, the chain 42, and the other cross-shaft 11 and chain 42, thus operating the feed-tables or cross-slides 7. When the clutch 34 is in gear, the other clutch 33 is out of gear, and the pinion 43 drives the wheel 41 directly, thus quickly raising or lowering the feed-tables. When the clutch 33 is in gear, the other, 34, is out of gear, and the ratchet-wheel 36, through the shaft 39 and pinion 40, actuates the wheel 41, caus-- ing the feed to operate slowly, the direction of traverse of the slides 7 being determined IOO by the pulley 26 being actuated by either the open or the crossed belts. Water is fed to the same by any suitable means.

The carriage 44, on which the stones 32 are laid and carried, may be provided with a trough 45 all around for catching the sand IIO and water and arranged with a continuous fall to one end, so that the water and the other refuse may flow into a receiver to be used over again, and such carriage slides on rails 46, which allows of its being moved backward or forward by means of the rope 48, to which such carriage is attached. Each end of the rope is Wound upon a barrel 49 in such a fashion that as the one portion is wound up the other is unwound, such an operation being performed by means of the gear-wheels 50 and 51, the fast pulley 52, and the open or the crossed belts 53 or 54.

Having now described my invention, what I claim as new, and desire to secure by Letters Patent, is-

In an apparatus for sawing stone, the cornbination of a band having cutters thereon, pulleys carrying the band, means for driving the pulleys, slides carrying the pulleys, means for raising and lowering the slides at different speeds, said means consisting of nuts on the slides, screws 9 passing through said nuts,

said screws having gearing thereon, shafts 1l having gearing thereon meshing with the gearing on the screws 9, means connecting the shafts 11 together, a shaft 27, a fast pulley 26 thereon, means for operating the pulley 26 in one direction or the other, a shaft 39, a pinion 40 thereon, a pinion 43 on the shaft 27, a pinion 41 on one of the shafts ll engaging with the pinions 40 and 43, clutches 33 and 34 for controlling the pinions 4() and 43, an adjustable crank 35 on the shaft 27, a ratchetwheel 36 on the lever 39, a rod 37 connecting said wheel 36 with the crank 35, a lever 29 for throwing one clutch into engagement with its pinion while disengaging the other clutch, and a hand-lever for operating said lever 29 whereby the slides may be moved at different speeds, substantially as described.

ARTHUR GEO. GRICE.

Witnesses T. R. BONNYM, MAUD CARGILL. 

